package STUDENT.TRANDAODAIVI.BASIC.BaiTapCauTruc;
import java.util.InputMismatchException;
import java.util.Scanner;
public class BT3 {
public static void main(String[] args) {
	Scanner input =new Scanner(System.in);
//	try{
//	System.out.println("Chuong trinh chuyen doi kg sang pounds");
//	System.out.print("Nhap so kg: ");
//	double k=input.nextDouble();
//	System.out.println(k+" kg = "+k*2.2 +" pounds");
//	}
//	catch(InputMismatchException exc){
//		System.out.println("Nhap sai du lieu");
//		
//	}
	
	
	//C2
	System.out.println("Nhap a: ");
	String temp=input.nextLine();
	if (temp.isEmpty()){
		System.out.println("Phai nhap a");	
		//return; cung dc
	} else{
	double kg=Double.parseDouble(temp);
	System.out.println("Pounds= "+kg*2.2);}
	
	
	
	
}
}
